Clinker discharging funnel for cement production

Abstract

The utility model discloses a cement production with clinker discharging hopper relates to cement discharging device technical field, including the funnel body, the stirring drive box and the discharge gate, the stirring drive box fixed mounting is in the upper wall surface of funnel body, the discharge gate fixed mounting is in the lower wall surface inside the funnel body, the side wall surface fixed mounting of funnel body inside has the deflector, the upper portion of deflector is installed with broken structure, the upper end fixed sleeve of stirring drive box has the flow guide cover, and the output of stirring drive box is connected with stirring structure, and the buffer pad is installed between funnel body and support structure, the upper wall surface fixed mounting of funnel body has the overflow board, through the modularization structure and realizes the quick replacement of feeding frame, reduces the downtime maintenance time, and the replaceable feeding frame prolongs the service life of funnel body, solves the problem that the existing discharging device feeding port does not have the buffer device, and the feeding is impacted directly, and the stress is bigger, and the service life is lower.

Description

Technical Field

[0001] This utility model relates to the technical field of cement feeding devices, and in particular to a clinker feeding funnel for cement production. Background Technology

[0002] Cement is an important building material in modern society. Cement clinker is a semi-finished product obtained by mixing limestone, clay and iron raw materials as the main raw materials in appropriate proportions, burning them until partially or completely melted and then cooling them. In production, it is often prepared by dry and wet methods. In the wet method, the raw materials are ground into raw meal slurry with water and then fed into a wet rotary kiln to calcine into clinker, forming clinker particles of different sizes.

[0003] Chinese Patent Publication No. CN117065881A discloses a clinker anti-clogging feeding device for cement production that is easy to clean. The device includes a hopper, a cover plate fitted on top of the hopper, an inlet pipe connected to the top of the cover plate, and an outlet pipe connected to the bottom of the hopper. A locking mechanism is installed between the hopper and the cover plate. Lifting mechanisms are fixedly installed on both sides of the cover plate. A crushing and conveying mechanism is installed through the top of the cover plate, and a water flushing mechanism is installed through the bottom of the cover plate. This invention locks the cover plate to the top of the hopper, facilitating disassembly between the cover plate and the hopper. This exposes the crushing mechanism, making it easier to clean the inner wall of the hopper and the crushing structure. The crushing rod and stirring rod rotate to crush the material entering the hopper cavity, resulting in good crushing effect. Simultaneously, it scrapes off material adhering to the inner wall of the hopper and evenly conveys the crushed clinker downwards, facilitating its downward flow.

[0004] However, the above technical solution has the following defects: In the above easy-to-clean clinker anti-blocking feeding device for cement production, the clinker is not crushed enough, resulting in clinker particles of different sizes, which affects subsequent processing. In addition, there is no buffer device at the feed inlet, and the material is directly impacted during feeding, resulting in greater stress and a shorter service life. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a clinker feeding funnel for cement production. In the existing feeding device, the clinker is not crushed enough, resulting in clinker particles of different sizes, which affects subsequent processing. In addition, there is no buffer device at the feed inlet, and the feed is directly impacted during feeding, resulting in greater stress and a shorter service life.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a clinker feeding funnel for cement production, comprising a funnel body, a mixing transmission box, and a discharge port. The mixing transmission box is fixedly installed on the upper wall of the funnel body, and the discharge port is fixedly installed on the lower wall inside the funnel body. A guide plate is fixedly installed on the side wall inside the funnel body, and a crushing structure is installed above the guide plate. A flow guide sleeve is fixedly fitted on the upper end of the mixing transmission box, and a mixing structure is connected to the output end of the mixing transmission box. A feeding structure is installed on the upper wall of the funnel body, and a support structure is connected to the outer wall of the funnel body. A buffer pad is installed between the funnel body and the support structure, and an overflow device is fixedly installed on the upper wall of the funnel body. The funnel body has several feed holes on its upper wall. The crushing structure includes several cutter holders, several side-wall crushing cutters, and several diversion channels. The cutter holders are fixedly installed on the side walls inside the funnel body and are evenly distributed. The side-wall crushing cutters are triangular and fixedly installed inside the cutter holders. The diversion channels are opened on the side walls inside the funnel body and are arranged between the cutter holders. The feeding structure includes several damping rods, a positioning platform, a feeding frame, and a locking frame. The damping rods are fixedly installed on the upper wall of the funnel body. The positioning platform is fixedly installed on the upper wall of the damping rods. The feeding frame is connected to the upper wall of the positioning platform. The locking frame is connected to the upper wall of the feeding frame.

[0007] As a further embodiment of this utility model: the stirring structure includes: a stirring rod, a plurality of main shaft crushing blades, a plurality of stirring paddles, and a spiral auger; the stirring rod is fixedly installed at the output end of the stirring transmission box, the plurality of main shaft crushing blades are respectively fixedly installed on the upper half of the outer wall of the stirring rod, the plurality of stirring paddles are respectively fixedly installed on the lower half of the outer wall of the stirring rod, and the spiral auger is fixedly fitted on the lower end of the stirring rod.

[0008] As a further embodiment of this utility model: the number of the plurality of stirring paddles is greater than the number of the plurality of main shaft crushing blades, the plurality of main shaft crushing blades and the plurality of stirring paddles are evenly distributed on the outer wall surface of the stirring rod, and the spiral auger is arranged inside the discharge port.

[0009] As a further embodiment of this utility model: the support structure includes: a support frame, a protective frame, and a load-bearing frame; the support frame is fitted onto the lower end face of the funnel body, the protective frame is fixedly installed on the outer wall of the support frame, and the load-bearing frame is fixedly installed on the outer wall of the protective frame.

[0010] As a further embodiment of this utility model, several structural ribs are fixedly installed between the support frame and the protective frame.

[0011] As a further embodiment of this utility model: both the positioning platform and the locking frame are provided with several positioning holes and are connected by bolts.

[0012] As a further embodiment of this invention, the cushioning pad is made of aluminum foam.

[0013] As a further embodiment of this utility model: the guide plate and several flow channels are provided with an ultra-high molecular weight polyethylene coating.

[0014] The present invention adopts the above technical solution and has the following advantages compared with the prior art: Large pieces of clinker are initially crushed by the high-speed rotating main shaft crusher. Incompletely crushed pieces are thrown against the side wall of the funnel body by centrifugal force, colliding with the triangular side wall crushers on the cutter holder and further broken into smaller pieces. The crushed clinker is then guided by the side wall crushers to the diversion channel under inertia. The ultra-high molecular weight polyethylene coating on the inner wall of the diversion channel ensures smooth flow of the clinker, preventing accumulation. Subsequently, the clinker is guided by the guide plate to the stirring paddle area. Because there are more stirring paddles than main shaft crushers, the clinker can be more finely stirred and crushed, ensuring uniform particle size. This solves the problem of insufficient clinker crushing in existing feeding devices, which leads to inconsistent clinker particle size and affects subsequent processing.

[0015] The modular structure enables quick replacement of the feed rack, reducing downtime for maintenance. The replaceable feed rack extends the service life of the funnel body and solves the problem that existing feeding devices lack a buffer device at the feed inlet, resulting in direct impact and high stress during feeding, leading to a short service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a clinker feeding funnel for cement production according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the crushing structure of a clinker feeding hopper for cement production in an embodiment of this utility model; Figure 3 This is a schematic diagram of the stirring structure of a clinker feeding funnel for cement production according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the support structure of a clinker feeding hopper for cement production according to an embodiment of this utility model.

[0017] In the diagram: 1. Funnel body; 2. Stirring transmission box; 3. Discharge port; 4. Guide plate; 5. Drainage sleeve; 6. Buffer pad; 7. Overflow plate; 8. Knife holder; 9. Side wall crushing knife; 10. Drainage channel; 11. Damping rod; 12. Positioning platform; 13. Feed rack; 14. Locking frame; 15. Stirring rod; 16. Main shaft crushing knife; 17. Stirring paddle; 18. Spiral auger; 19. Support frame; 20. Protective frame; 21. Load-bearing frame; 22. Structural rib; 23. Positioning hole; 24. Bolt; 25. Feed hole. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Please see Figures 1-4 A clinker feeding hopper for cement production includes a hopper body 1, a mixing transmission box 2, and a discharge port 3. The mixing transmission box 2 is fixedly installed on the upper wall of the hopper body 1, and the discharge port 3 is fixedly installed on the lower wall inside the hopper body 1. A guide plate 4 is fixedly installed on the side wall inside the hopper body 1, and a crushing structure is installed above the guide plate 4. A flow guide sleeve 5 is fixedly fitted on the upper end of the mixing transmission box 2, and a mixing structure is connected to the output end of the mixing transmission box 2. A feeding structure is installed on the upper wall of the hopper body 1, and a support structure is connected to the outer wall of the hopper body 1. A buffer pad 6 is installed between the hopper body 1 and the support structure. An overflow plate 7 is fixedly installed on the upper wall of the hopper body 1, and several feeding holes 25 are opened on the upper wall of the hopper body 1. The crushing structure includes: several cutter holders 8, several side-wall crushing cutters 9, and several diversion channels 10. The cutter holders 8 are fixedly installed on the side walls inside the funnel body 1 and are evenly distributed. The side-wall crushing cutters 9 are triangular cutters and are fixedly installed inside the cutter holders 8. The diversion channels 10 are opened on the side walls inside the funnel body 1 and are arranged between the cutter holders 8. The feeding structure includes: several damping rods 11, a positioning platform 12, a feeding frame 13, and a locking frame 14. The damping rods 11 are fixedly installed on the upper wall of the funnel body 1. The positioning platform 12 is fixedly installed on the upper wall of the damping rods 11. The feeding frame 13 is connected to the upper wall of the positioning platform 12. The locking frame 14 is connected to the upper wall of the feeding frame 13.

[0020] Please see Figure 3The stirring structure includes: a stirring rod 15, several main shaft crushing blades 16, several stirring paddles 17, and a spiral cutter 18; the stirring rod 15 is fixedly installed at the output end of the stirring transmission box 2, several main shaft crushing blades 16 are respectively fixedly installed on the upper half of the outer wall of the stirring rod 15, several stirring paddles 17 are respectively fixedly installed on the lower half of the outer wall of the stirring rod 15, and the spiral cutter 18 is fixedly fitted on the lower end of the stirring rod 15.

[0021] Please see Figure 3 The number of agitators 17 is greater than the number of main shaft crushers 16. The main shaft crushers 16 and agitators 17 are evenly distributed on the outer wall of the agitator 15, and the spiral cutter 18 is set in the discharge port 3.

[0022] Please see Figure 4 The support structure includes a support frame 19, a protective frame 20, and a load-bearing frame 21. The support frame 19 is fitted onto the lower end face of the funnel body 1, the protective frame 20 is fixedly installed on the outer wall of the support frame 19, and the load-bearing frame 21 is fixedly installed on the outer wall of the protective frame 20.

[0023] Please see Figure 4 Several structural ribs 22 are fixedly installed between the support frame 19 and the protective frame 20. When in use, the structural ribs 22 can increase the structural stability.

[0024] Please see Figure 3 The positioning platform 12 and the locking frame 14 are both provided with several positioning holes 23 and are connected by bolts 24. When in use, the connection by bolts 24 can increase the locking firmness.

[0025] Please see Figure 4 The cushioning pad 6 is made of aluminum foam. When in use, the sound-absorbing properties of aluminum foam can reduce some noise.

[0026] Please see Figure 2 The guide plate 4 and several flow channels 10 are coated with ultra-high molecular weight polyethylene. When in use, the ultra-high molecular weight polyethylene coating prevents the clinker from sticking to the funnel body 1 and has a low cost.

[0027] In Example 1, large pieces of clinker are initially crushed by the high-speed rotating main shaft crusher 16. The incompletely crushed large pieces of clinker are thrown towards the side wall of the funnel body 1 under the action of centrifugal force, and collide with the triangular side wall crusher 9 on the cutter holder 8, further crushing them into smaller pieces. The crushed clinker is guided to the diversion channel 10 by the side wall crusher 9 under the action of inertia. The ultra-high molecular weight polyethylene coating on the inner wall of the diversion channel ensures that the clinker slides smoothly and avoids accumulation. Then, the clinker is guided to the stirring paddle 17 area by the guide plate 4. Since there are more stirring paddles than main shaft crushers, the clinker can be more finely stirred and crushed to ensure uniform particle size.

[0028] Specifically, during use, the operator starts the mixing transmission box 2, which drives several main shaft crushing blades 16, several mixing paddles 17, and spiral cutters 18 to rotate. Then, clinker is poured in along the feeding rack 13. When the feeding rack 13 is impacted by the clinker, the damping rod 11 below is compressed by the positioning table 12 to alleviate the vertical impact. At the same time, it can slide slightly laterally along the positioning table to adjust the falling angle and reduce the stress concentration of the feeding rack 13, achieving double buffer protection. The clinker enters the funnel body 1 through several feeding holes 25 and first comes into contact with the high-speed rotating main shaft crushing blades 16, and large pieces of clinker are initially crushed. Large pieces of clinker that are not completely crushed are thrown towards the side wall of the funnel body 1 under the action of centrifugal force, and collide with the triangular side wall crushing blades 9 on the blade holder 8, further crushing them into smaller pieces. The crushed clinker is further crushed into smaller pieces by inertia. Under the action of the side wall crushing blades 9, the clinker is guided to the diversion channel 10. The ultra-high molecular weight polyethylene coating on the inner wall of the diversion channel ensures that the clinker slides down smoothly and avoids accumulation. Then, the clinker is guided to the stirring paddle 17 area by the guide plate 4. Since there are more stirring paddles than main shaft crushing blades, the clinker can be more finely stirred and crushed to ensure uniform particle size. Finally, the finely crushed clinker is stably delivered out of the discharge port 3 by the spiral auger 18. During this process, when the clinker falls on the stirring transmission box 2, it will be guided by the conical diversion sleeve 5 to several feed holes 25. The overflow plate 7 can reduce the clinker splashing out of the funnel body 1. The foam aluminum buffer pad 6 between the funnel body 1 and the support structure support frame 19 and protective frame 20 can absorb the vibration during equipment operation. The sound absorption characteristics of foam aluminum can reduce some noise. Combined with the reinforced support rigidity of the structural rib plate 22, it ensures the overall stable operation.

[0029] Example 2: In this example, the modular structure enables quick replacement of the feed rack, reducing downtime for maintenance. The replaceable feed rack 13 extends the service life of the funnel body 1.

[0030] Specifically, when the feed rack 13 wears out due to long-term use, or needs to be replaced with a suitable model according to the characteristics of the clinker, the operator can unscrew several bolts 24 along several positioning holes 23, and then remove the locking frame 14 from the feed rack 13. At this time, the feed rack 13 that needs to be replaced can be taken out along the positioning table 12. Then, the new feed rack 13 is inserted into the positioning table 12 (note to avoid several positioning holes 23), and the locking frame 14 is reset by several bolts 24.

[0031] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A clinker feeding hopper for cement production, comprising a hopper body (1), a mixing transmission box (2), and a discharge port (3), wherein the mixing transmission box (2) is fixedly installed on the upper wall of the hopper body (1), and the discharge port (3) is fixedly installed on the lower wall inside the hopper body (1), characterized in that, A guide plate (4) is fixedly installed on the side wall inside the funnel body (1). A crushing structure is installed above the guide plate (4). A flow guide sleeve (5) is fixedly fitted on the upper end of the stirring transmission box (2). A stirring structure is connected to the output end of the stirring transmission box (2). A feeding structure is installed on the upper wall of the funnel body (1). A support structure is connected to the outer wall of the funnel body (1). A buffer pad (6) is installed between the funnel body (1) and the support structure. An overflow plate (7) is fixedly installed on the upper wall of the funnel body (1). Several feeding holes (25) are opened on the upper wall of the funnel body (1). The crushing structure includes: several knife holders (8), several side wall crushing knives (9) and several diversion channels (10). Several knife holders (8) are fixedly installed on the side wall inside the funnel body (1) and are evenly distributed. Several side wall crushing knives (9) are triangular and fixedly installed in several knife holders (8). Several diversion channels (10) are opened on the side wall inside the funnel body (1) and are arranged between several knife holders (8). The feeding structure includes: a plurality of damping rods (11), a positioning platform (12), a feeding rack (13), and a locking frame (14). The plurality of damping rods (11) are respectively fixedly installed on the upper wall of the funnel body (1). The positioning platform (12) is fixedly installed on the upper wall of the plurality of damping rods (11). The feeding rack (13) is connected to the upper wall of the positioning platform (12). The locking frame (14) is connected to the upper wall of the feeding rack (13).

2. The clinker feeding hopper for cement production according to claim 1, characterized in that, The stirring structure includes: a stirring rod (15), a plurality of main shaft crushing blades (16), a plurality of stirring paddles (17), and a spiral cutter (18). The stirring rod (15) is fixedly installed at the output end of the stirring transmission box (2), a number of main shaft crushing blades (16) are fixedly installed on the upper half of the outer wall of the stirring rod (15), a number of stirring paddles (17) are fixedly installed on the lower half of the outer wall of the stirring rod (15), and the spiral auger (18) is fixedly fitted on the lower end of the stirring rod (15).

3. The clinker feeding hopper for cement production according to claim 2, characterized in that, The number of the stirring paddles (17) is greater than the number of the main shaft crushing blades (16). The main shaft crushing blades (16) and the stirring paddles (17) are evenly distributed on the outer wall of the stirring rod (15). The spiral cutter (18) is set inside the discharge port (3).

4. The clinker feeding hopper for cement production according to claim 1, characterized in that, The support structure includes: a support frame (19), a protective frame (20), and a load-bearing frame (21). The support frame (19) is fitted onto the lower end face of the funnel body (1), the protective frame (20) is fixedly installed on the outer wall of the support frame (19), and the load-bearing frame (21) is fixedly installed on the outer wall of the protective frame (20).

5. A clinker feeding hopper for cement production according to claim 4, characterized in that, Several structural ribs (22) are fixedly installed between the support frame (19) and the protective frame (20).

6. A clinker feeding hopper for cement production according to claim 1, characterized in that, The positioning platform (12) and the locking frame (14) are both provided with several positioning holes (23) and are connected by bolts (24).

7. A clinker feeding hopper for cement production according to claim 1, characterized in that, The cushioning pad (6) is made of aluminum foam.

8. A clinker feeding hopper for cement production according to claim 1, characterized in that, The inner walls of the guide plate (4) and several diversion channels (10) are coated with ultra-high molecular weight polyethylene.

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